Window operating device



Aug. 30, 1932. A I 1,874,465

WINDOW OPERATING DEVICE Filed May 6, 1930 2 sheets-sheet 1 Aug. 30, 1932.

J. H. DAVIS 1,874,465

WINDOW OPERATING DEVICE Filed May 6. 1930 2 Sheets-Sheet 2 The object oi m invention is eleciricelly centre ed end pnen ere'ted window operating device, purposes of illustration, 1 she cisliy adapted for use in connecoion oessenger vehicle, While IL heve shown my e bodied in the eleciio-pnenine'zi ygoe, be understood the; it may he chonicsiiy controlled pneumatically $13 in "the drawings: Figi re 1 is e iTonl; elevation she embodying my inveioiion Figure 2 is s verbiosl of Figaro 1.

, Figure 3 'is en enlarged deinii eies'si-ion illustrating my invention. Figure 4 is an enlarged detail sievetion of Figure 3, partly broken sway,

Figure 5 is an enlarged detail sectional View of -the sesh lock and e portion of she lift plunger,

The reference numerei fl designsees e losssenger'vehicle window, of ihe douhie sesh use " 25 type, which is so-coxnmonly now used in passenger cars or vehicles, hols, of course, is wili be understood that my inven zion is equally efiective with the singie sash type of window The sashes 2 and 3 ore of commend-i." type.

The rail and stiles i, 5 respeczively, he suitable bore 6 which register, in'bo W i upper end of the plunger, piston or i 7 eniers end is anchored, said plunger a transverse slot 8 into which the plunger bolt 9 projects, seio hols losing the bell crank lever type, one end of whi "functions as an operating handle 16. This bolt is pivoted st 11 in a casing 12, which is provided with a recess 13, in which is mounted a rod 1 1- on which a coii spring 15 is mounted, one end of the spring being seeded on the support 16, while its other end is seated on the shoulder 17 of the sash lock ooiis 18.

bolt 18 is adopted to be projected lay the eerie]. 3T9; Mikh l the handle 10 is ops-relied pressed end the hell, 18 gegei'neni wiath see keeper l9 feet that the hnndle some 21 in 'ishehoih Ofiifil is verlziosi movement oi? the on pioneer hole 9 ihe slot 8 in eiongnified, es shown. A sui secure: so bottom edge through the piston travels,

The piston, or push rod 1, is sl mounted in the casing or cy nder s if desised, having e piston The desire-pneumatic valves 25, are connected though the pipes 26 to 'lhe pipe 7'27, which pipe 2? is in turn connected, with es nsue emergency reservoir on ihe vehicle. The selves 24- end 25 are connected by pipes 28 be the pipe iine 29, which in turn is connecced to the piston casings or cylinders 23.

When double sashes are used, sh hoii'cons 39 end 31 one employed, one we eech sash, and placed in e, position for convenient use by -the pessengei. These Emissions are sized, preferably as shown (32} "to the valves 2%, 25. The wire 38 is in direct circuit the usual vehicle battery, whiie the wire 3 leads to the ssid usne-l i finen she push button is depressed the eleciimpneninofnic solve admits si the c index 23 whereupon die pisr to i and operates she ninnger bolt boii. 18 out of with its keeper dine freeing the sash to move up" desired open position under "the L iion of she push rod 7 end the sir i movemeni coniiniies so 10s,; push hnit'bon is held in its depressed position, or until ihc sash has conip ed its movement where it is held by the lot; 11 bolt 13. When. ihe pressure on the push button is removed she eleciro-pneuinaiic Valve sutomeiically opens an exhaust port so that the air pressure in the cylinder 23 is released,

The windows may loe raised and lowered by hand in the usual manner in the eventof any dison'ensenieni or breakdown of the power raising device.

The amount of compressed air required is so slight that with all the windows in the oer,

iio

.of one amperefor the on all cars in the train equip ed with this device, there is no likelihood o reducin the air resure so as to cause brake app 'cation. amount of electrical energy required for each push button is only about three-tenths moment that the push button is dep Consequently, the demand for electricity is very low, indeed, and will in no wise constitute a drain upon the batteries or the lighting system which would ap reciably affect its capacity. a

0 design and construction of the entire mechanism is such that it will require no maintenance or lubrication from shopping to sho ping of the car.

e compressed air is taken from the emerv gency reservoir on the car, or other suitable source. The electricity is taken from the car lighting ystem or the batteries in connection therewith. I The ush button may be separate, or it may .be com ined with the handle of the latch 9 in such manner that when the latch handle 10 valve would admit air to the cylinder 23 and the window would move upward unattended by any efiortof the operator other than to depress the latch handle. The sash would be secured in an desired position by the spring 15 of the latch causing the bolt of the same to en a a keeper in the usual manner.

, en the cars are parked, it is desirable,

and in man cases necessary, to have the windows look so as to prevent opening from the outside. It is obvious from the disclosure herein that this is accomplished by reason of the fact that the latch 18 engages the keeper at all sash positions, and it can only be withdrawn from the keeper by hand pressure in the usual manner, or by depressing the push button, if a separate push button is rovided, both of which acts can only be perormed from within the car.

The device provides for two one inch air cylinders for each sash, one on each side, both controlled by one electro-pneumatic valve. When the windows are double sashed four air cylinders and two electro-pneumatic valves would be required. My tests in cars,

however, have indicated that one cylinder to each sash ma be adequate in which event for double sash windows only two cylinders 23 would be required for raising. Two electropneumatic valves, or possibly one, might be arranged to function with two windows.

This electro-pneumatic valve is a standard product and has two seats or ports. The normal position is the upper port which is open to the atmosphere. When the push button is pressed the upper port is closed and the lower port is opened against spring compression. Compressed air from the emergency reservoir or other source then enters throu h the lower port and passes into the cylin er which causes the window to raise. During this operation'the upper port of course-Jis closed. The moment that the pressure on the push button is released the ring in compression at the bottom raises t e valve thus openinglthe port at the top and closing the one at t e bottom. This act immediate y releases to atmosphere the air which is in the cylinders.

An air cylinder or cylinder of suitable dimensions may be placed beneath the windows to be raised or may be located overhead or in any desired position. This has reference to the air c linders used' for raising or lowering thewmdows. In other words, on a car constructed in a certain manner I may desire to place these cylinders for raising or lowering the windows in a horizontal position or above the window rather than in a vertical position immediately below as I have shown. Any desired position can be used by suitable translating mechanism to impart an up and down motion to the window.

What I claim is:

1. In a window, a device for locking and operating the sash of the window, saiddev1ce including a latch to lock the sash in the desired position, a power operated device coupled to the latch to release the latch and operate the sash, a power supply, and an electro-pneumaticvalveto control the o ration.

2. In a window, a device for 100 'ng and operating the sash of the window, said device including a ivoted latch to lock the sash in the desire position, and an electricall controlled and pneumatically operated devlce coupled to the latch to release said latch and operate the sash.

3. In a window, a device for locking and operating the sash of the window, said device including a normally manually operated latch to hold the sash in the desired position, and an electrically controlled and pneumatically operated member coupled to the latch forhreleasing said latch and operating the sas 4. In a window, a device for locking and operating the sash of the window, said devlce including a latch, a pneumatically operated member attached to the latch for releasing said latch and operating said sash, an electro-pneumatic valve controllin said member, and a push button in the WlIldOW frame to control said valve.

' 5. In a window, a device for locking and operating the sash of the window, a latch, a pneumatically operated member attached to said latch for releasing the latch and operating the sash, an electro-pneumatic valve controlling said member, and a push button in the window frame to control said valve, said latch being manually operable independently of said member.

6. In a window, a device for locking and operating the sash of the window comprisingla spring actuated latch to engage the sas a pivoted operating member connected, i

to the latch, a piston connected to the latch operatin member for directly releasing sa d latch an transmitting motion throu hsald latch operating member to the late and means for operating the piston.

V 7. In a window, a device for locking and operating the sash of the window comprising a piston, a latch comprising coupled members, one to engage the window frame, to lock the sash in closed position and the other to engage the piston, and means for operating the piston, the latch members and piston being coupled for operation whereby the piston is adapted to directly release the latch and through the latch then transmit motion tothe window.

8. In a window, a device for locking and operating the sash of the window comprising a sliding latch member for locking the latch, a spring acting thereon for holding said latch member projected, a piston, a pivoted latch member engaging the piston and adapted to be operated thereby to retract the sliding latch member and transmit motion to the window, and a handle on the pivoted latch member whereby said member ma be operated for manually retracting the sli 'ng latch member.

9. In a window, a device for locking and operating the sash of the window including a latch to lock the sash in the desired position, said latch having a pivotally mounted member, a plunger connected to said latch member and acting on the latch for releasing the latch and transmitting motion through the latchto the sash, and valve controlled fluid pressure means governing said member. 10. In a window, a device for locking and operating the sash of the window including a sliding latch to lock the sash in the desired position, a pivotally mounted member for transmitting movement thereto, a spring for holding the latch projected, a fluent power operated member connected to the pivotally mounted member for actuating the same to release the latch and transmit motion through the latch to the sash, and a control member governing said power applying means.

11. Ina window, a device for locking and operating the sash of the window including a pivoted latch to lock the sash in the desired position, a fluid pressure operated device coupled to the latch to release the latch and transmit motion therethrough to the sash, and an electro-pneumatic valve controlling said device. 7 n testimony whereof I aflix my signature.

JESSE H. DAVIS. 

